1201101302121 has 16 divisors (see below), whose sum is σ = 1830589907328. Its totient is φ = 686215987200.

The previous prime is 1201101302117. The next prime is 1201101302153. The reversal of 1201101302121 is 1212031011021.

It is not a de Polignac number, because 1201101302121 - 2² = 1201101302117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201101302121.

It is not an unprimeable number, because it can be changed into a prime (1201101302521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5201560 + ... + 5427561.

It is an arithmetic number, because the mean of its divisors is an integer number (114411869208).

Almost surely, 2^{1201101302121} is an apocalyptic number.

It is an amenable number.

1201101302121 is a deficient number, since it is larger than the sum of its proper divisors (629488605207).

1201101302121 is a wasteful number, since it uses less digits than its factorization.

1201101302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634512.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1201101302121 its reverse (1212031011021), we get a palindrome (2413132313142).

The spelling of 1201101302121 in words is "one trillion, two hundred one billion, one hundred one million, three hundred two thousand, one hundred twenty-one".